Hacker News on 6 July 2021

• European Parliament approves mass surveillance of private communication
• Poisson's Equation
• Console Do Not Track – Proposal for a standard environment variable
• Linux Rust Support
• No More Movies
• Data Structure Visualizations
• Leaving Google
• Instant water cleaning method ‘millions of times’ better: study
• Tell HN: YC will help you find a co-founder
• Show HN: Side Quest – An aggregator for not full-time tech jobs